./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/busybox-1.22.0/uniq-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74cf2181-9e7a-4f94-8788-5bb1fa15bf9e/bin/utaipan-verify-FOvIYxoinp/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74cf2181-9e7a-4f94-8788-5bb1fa15bf9e/bin/utaipan-verify-FOvIYxoinp/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74cf2181-9e7a-4f94-8788-5bb1fa15bf9e/bin/utaipan-verify-FOvIYxoinp/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74cf2181-9e7a-4f94-8788-5bb1fa15bf9e/bin/utaipan-verify-FOvIYxoinp/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/busybox-1.22.0/uniq-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74cf2181-9e7a-4f94-8788-5bb1fa15bf9e/bin/utaipan-verify-FOvIYxoinp/config/svcomp-DerefFreeMemtrack-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74cf2181-9e7a-4f94-8788-5bb1fa15bf9e/bin/utaipan-verify-FOvIYxoinp --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 7d919a8eed5bff5d7b13e529bcc3b017ee1b2504c38f6ffe9202719064bad4a0 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 20:30:23,748 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 20:30:23,851 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74cf2181-9e7a-4f94-8788-5bb1fa15bf9e/bin/utaipan-verify-FOvIYxoinp/config/svcomp-DerefFreeMemtrack-64bit-Taipan_Default.epf [2023-11-06 20:30:23,855 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 20:30:23,856 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 20:30:23,894 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 20:30:23,895 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 20:30:23,896 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 20:30:23,897 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 20:30:23,898 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 20:30:23,898 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-06 20:30:23,899 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-06 20:30:23,900 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-06 20:30:23,900 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-06 20:30:23,901 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-06 20:30:23,901 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-06 20:30:23,902 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-06 20:30:23,902 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-06 20:30:23,903 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-06 20:30:23,903 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-06 20:30:23,904 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-06 20:30:23,905 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-06 20:30:23,906 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 20:30:23,906 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 20:30:23,907 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 20:30:23,907 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 20:30:23,908 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 20:30:23,908 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-06 20:30:23,909 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-06 20:30:23,909 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-06 20:30:23,910 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 20:30:23,910 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 20:30:23,911 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 20:30:23,911 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 20:30:23,912 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 20:30:23,912 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 20:30:23,913 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 20:30:23,913 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 20:30:23,914 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 20:30:23,914 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-06 20:30:23,915 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 20:30:23,916 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-06 20:30:23,916 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 20:30:23,917 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74cf2181-9e7a-4f94-8788-5bb1fa15bf9e/bin/utaipan-verify-FOvIYxoinp/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74cf2181-9e7a-4f94-8788-5bb1fa15bf9e/bin/utaipan-verify-FOvIYxoinp Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7d919a8eed5bff5d7b13e529bcc3b017ee1b2504c38f6ffe9202719064bad4a0 [2023-11-06 20:30:24,228 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 20:30:24,256 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 20:30:24,261 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 20:30:24,263 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 20:30:24,264 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 20:30:24,266 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74cf2181-9e7a-4f94-8788-5bb1fa15bf9e/bin/utaipan-verify-FOvIYxoinp/../../sv-benchmarks/c/busybox-1.22.0/uniq-2.i [2023-11-06 20:30:27,424 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 20:30:27,945 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 20:30:27,946 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74cf2181-9e7a-4f94-8788-5bb1fa15bf9e/sv-benchmarks/c/busybox-1.22.0/uniq-2.i [2023-11-06 20:30:27,983 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74cf2181-9e7a-4f94-8788-5bb1fa15bf9e/bin/utaipan-verify-FOvIYxoinp/data/ea21a332e/d73961d967ca4e32abc238ca10d3f5f0/FLAGa0476ff25 [2023-11-06 20:30:28,007 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74cf2181-9e7a-4f94-8788-5bb1fa15bf9e/bin/utaipan-verify-FOvIYxoinp/data/ea21a332e/d73961d967ca4e32abc238ca10d3f5f0 [2023-11-06 20:30:28,010 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 20:30:28,011 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 20:30:28,013 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 20:30:28,013 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 20:30:28,025 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 20:30:28,026 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:30:28" (1/1) ... [2023-11-06 20:30:28,027 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34754c29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:30:28, skipping insertion in model container [2023-11-06 20:30:28,027 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:30:28" (1/1) ... [2023-11-06 20:30:28,118 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 20:30:29,863 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 20:30:29,896 ERROR L324 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2023-11-06 20:30:29,901 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@201489c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:30:29, skipping insertion in model container [2023-11-06 20:30:29,901 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 20:30:29,902 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-06 20:30:29,905 INFO L158 Benchmark]: Toolchain (without parser) took 1891.24ms. Allocated memory was 140.5MB in the beginning and 178.3MB in the end (delta: 37.7MB). Free memory was 89.2MB in the beginning and 133.6MB in the end (delta: -44.5MB). Peak memory consumption was 37.8MB. Max. memory is 16.1GB. [2023-11-06 20:30:29,905 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 140.5MB. Free memory is still 114.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 20:30:29,906 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1888.54ms. Allocated memory was 140.5MB in the beginning and 178.3MB in the end (delta: 37.7MB). Free memory was 88.7MB in the beginning and 133.6MB in the end (delta: -44.9MB). Peak memory consumption was 37.8MB. Max. memory is 16.1GB. [2023-11-06 20:30:29,908 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 140.5MB. Free memory is still 114.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1888.54ms. Allocated memory was 140.5MB in the beginning and 178.3MB in the end (delta: 37.7MB). Free memory was 88.7MB in the beginning and 133.6MB in the end (delta: -44.9MB). Peak memory consumption was 37.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 2333]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74cf2181-9e7a-4f94-8788-5bb1fa15bf9e/bin/utaipan-verify-FOvIYxoinp/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74cf2181-9e7a-4f94-8788-5bb1fa15bf9e/bin/utaipan-verify-FOvIYxoinp/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74cf2181-9e7a-4f94-8788-5bb1fa15bf9e/bin/utaipan-verify-FOvIYxoinp/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74cf2181-9e7a-4f94-8788-5bb1fa15bf9e/bin/utaipan-verify-FOvIYxoinp/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/busybox-1.22.0/uniq-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74cf2181-9e7a-4f94-8788-5bb1fa15bf9e/bin/utaipan-verify-FOvIYxoinp/config/svcomp-DerefFreeMemtrack-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74cf2181-9e7a-4f94-8788-5bb1fa15bf9e/bin/utaipan-verify-FOvIYxoinp --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 7d919a8eed5bff5d7b13e529bcc3b017ee1b2504c38f6ffe9202719064bad4a0 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 20:30:32,386 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 20:30:32,470 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74cf2181-9e7a-4f94-8788-5bb1fa15bf9e/bin/utaipan-verify-FOvIYxoinp/config/svcomp-DerefFreeMemtrack-64bit-Taipan_Bitvector.epf [2023-11-06 20:30:32,476 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 20:30:32,477 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 20:30:32,509 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 20:30:32,510 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 20:30:32,510 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 20:30:32,511 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 20:30:32,512 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 20:30:32,513 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-06 20:30:32,513 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-06 20:30:32,514 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-06 20:30:32,515 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-06 20:30:32,515 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-06 20:30:32,516 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-06 20:30:32,517 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 20:30:32,518 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 20:30:32,518 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 20:30:32,519 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 20:30:32,520 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 20:30:32,520 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-06 20:30:32,521 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-06 20:30:32,521 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-06 20:30:32,522 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 20:30:32,522 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 20:30:32,523 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-06 20:30:32,524 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-06 20:30:32,524 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 20:30:32,525 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 20:30:32,525 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 20:30:32,525 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 20:30:32,526 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 20:30:32,526 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 20:30:32,526 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 20:30:32,527 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 20:30:32,527 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-06 20:30:32,527 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-06 20:30:32,528 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-06 20:30:32,528 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 20:30:32,528 INFO L153 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74cf2181-9e7a-4f94-8788-5bb1fa15bf9e/bin/utaipan-verify-FOvIYxoinp/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74cf2181-9e7a-4f94-8788-5bb1fa15bf9e/bin/utaipan-verify-FOvIYxoinp Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7d919a8eed5bff5d7b13e529bcc3b017ee1b2504c38f6ffe9202719064bad4a0 [2023-11-06 20:30:32,876 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 20:30:32,912 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 20:30:32,916 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 20:30:32,917 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 20:30:32,918 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 20:30:32,920 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74cf2181-9e7a-4f94-8788-5bb1fa15bf9e/bin/utaipan-verify-FOvIYxoinp/../../sv-benchmarks/c/busybox-1.22.0/uniq-2.i [2023-11-06 20:30:36,200 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 20:30:36,828 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 20:30:36,828 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74cf2181-9e7a-4f94-8788-5bb1fa15bf9e/sv-benchmarks/c/busybox-1.22.0/uniq-2.i [2023-11-06 20:30:36,872 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74cf2181-9e7a-4f94-8788-5bb1fa15bf9e/bin/utaipan-verify-FOvIYxoinp/data/d590cfcbd/8544c1169446469ab508ea8789c5dd2a/FLAGd4701249c [2023-11-06 20:30:36,895 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74cf2181-9e7a-4f94-8788-5bb1fa15bf9e/bin/utaipan-verify-FOvIYxoinp/data/d590cfcbd/8544c1169446469ab508ea8789c5dd2a [2023-11-06 20:30:36,900 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 20:30:36,902 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 20:30:36,907 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 20:30:36,907 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 20:30:36,913 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 20:30:36,916 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:30:36" (1/1) ... [2023-11-06 20:30:36,918 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1383db67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:30:36, skipping insertion in model container [2023-11-06 20:30:36,918 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:30:36" (1/1) ... [2023-11-06 20:30:37,018 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 20:30:38,544 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 20:30:38,577 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-06 20:30:38,615 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 20:30:38,867 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 20:30:38,898 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 20:30:39,073 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 20:30:39,384 WARN L672 CHandler]: The function fflush is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 20:30:39,384 WARN L672 CHandler]: The function strerror is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 20:30:39,384 WARN L672 CHandler]: The function strncmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 20:30:39,385 WARN L672 CHandler]: The function ferror is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 20:30:39,385 WARN L672 CHandler]: The function strtoul is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 20:30:39,385 WARN L672 CHandler]: The function longjmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 20:30:39,385 WARN L672 CHandler]: The function close is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 20:30:39,386 WARN L672 CHandler]: The function fgetc is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 20:30:39,394 INFO L206 MainTranslator]: Completed translation [2023-11-06 20:30:39,395 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:30:39 WrapperNode [2023-11-06 20:30:39,395 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 20:30:39,396 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 20:30:39,397 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 20:30:39,397 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 20:30:39,405 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:30:39" (1/1) ... [2023-11-06 20:30:39,523 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:30:39" (1/1) ... [2023-11-06 20:30:39,637 INFO L138 Inliner]: procedures = 614, calls = 436, calls flagged for inlining = 31, calls inlined = 30, statements flattened = 1608 [2023-11-06 20:30:39,638 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 20:30:39,639 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 20:30:39,639 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 20:30:39,639 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 20:30:39,650 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:30:39" (1/1) ... [2023-11-06 20:30:39,650 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:30:39" (1/1) ... [2023-11-06 20:30:39,671 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:30:39" (1/1) ... [2023-11-06 20:30:39,671 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:30:39" (1/1) ... [2023-11-06 20:30:39,758 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:30:39" (1/1) ... [2023-11-06 20:30:39,783 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:30:39" (1/1) ... [2023-11-06 20:30:39,810 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:30:39" (1/1) ... [2023-11-06 20:30:39,829 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:30:39" (1/1) ... [2023-11-06 20:30:39,856 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 20:30:39,857 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 20:30:39,857 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 20:30:39,857 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 20:30:39,861 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:30:39" (1/1) ... [2023-11-06 20:30:39,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 20:30:39,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74cf2181-9e7a-4f94-8788-5bb1fa15bf9e/bin/utaipan-verify-FOvIYxoinp/z3 [2023-11-06 20:30:39,898 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74cf2181-9e7a-4f94-8788-5bb1fa15bf9e/bin/utaipan-verify-FOvIYxoinp/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 20:30:39,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74cf2181-9e7a-4f94-8788-5bb1fa15bf9e/bin/utaipan-verify-FOvIYxoinp/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 20:30:39,965 INFO L130 BoogieDeclarations]: Found specification of procedure xopen [2023-11-06 20:30:39,965 INFO L138 BoogieDeclarations]: Found implementation of procedure xopen [2023-11-06 20:30:39,965 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2023-11-06 20:30:39,965 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc [2023-11-06 20:30:39,967 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc [2023-11-06 20:30:39,967 INFO L130 BoogieDeclarations]: Found specification of procedure close [2023-11-06 20:30:39,968 INFO L130 BoogieDeclarations]: Found specification of procedure xrealloc [2023-11-06 20:30:39,968 INFO L138 BoogieDeclarations]: Found implementation of procedure xrealloc [2023-11-06 20:30:39,968 INFO L130 BoogieDeclarations]: Found specification of procedure strerror [2023-11-06 20:30:39,969 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 20:30:39,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-06 20:30:39,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-11-06 20:30:39,969 INFO L130 BoogieDeclarations]: Found specification of procedure bb_verror_msg [2023-11-06 20:30:39,969 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_verror_msg [2023-11-06 20:30:39,970 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc [2023-11-06 20:30:39,970 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 20:30:39,970 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2023-11-06 20:30:39,970 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 20:30:39,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-06 20:30:39,970 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2023-11-06 20:30:39,971 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2023-11-06 20:30:39,972 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2023-11-06 20:30:39,972 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2023-11-06 20:30:39,972 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 20:30:39,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 20:30:39,973 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-06 20:30:39,973 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2023-11-06 20:30:39,973 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2023-11-06 20:30:39,973 INFO L130 BoogieDeclarations]: Found specification of procedure xmalloc [2023-11-06 20:30:39,973 INFO L138 BoogieDeclarations]: Found implementation of procedure xmalloc [2023-11-06 20:30:39,974 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-06 20:30:39,974 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-06 20:30:39,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-06 20:30:39,974 INFO L130 BoogieDeclarations]: Found specification of procedure bb_perror_msg_and_die [2023-11-06 20:30:39,974 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_perror_msg_and_die [2023-11-06 20:30:39,974 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-06 20:30:39,974 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-06 20:30:39,974 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-06 20:30:39,975 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-06 20:30:39,975 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 20:30:39,975 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-06 20:30:39,975 INFO L130 BoogieDeclarations]: Found specification of procedure ferror [2023-11-06 20:30:39,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2023-11-06 20:30:39,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2023-11-06 20:30:39,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-06 20:30:39,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-06 20:30:39,976 INFO L130 BoogieDeclarations]: Found specification of procedure bb_show_usage [2023-11-06 20:30:39,976 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_show_usage [2023-11-06 20:30:39,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2023-11-06 20:30:39,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2023-11-06 20:30:39,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2023-11-06 20:30:39,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2023-11-06 20:30:39,977 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2023-11-06 20:30:39,977 INFO L130 BoogieDeclarations]: Found specification of procedure bb_error_msg_and_die [2023-11-06 20:30:39,977 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_error_msg_and_die [2023-11-06 20:30:40,530 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 20:30:40,540 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 20:30:41,054 WARN L818 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-06 20:30:52,006 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 20:30:52,025 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 20:30:52,025 INFO L302 CfgBuilder]: Removed 32 assume(true) statements. [2023-11-06 20:30:52,030 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:30:52 BoogieIcfgContainer [2023-11-06 20:30:52,030 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 20:30:52,033 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 20:30:52,033 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 20:30:52,036 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 20:30:52,037 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 08:30:36" (1/3) ... [2023-11-06 20:30:52,038 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@373b5fd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:30:52, skipping insertion in model container [2023-11-06 20:30:52,040 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:30:39" (2/3) ... [2023-11-06 20:30:52,040 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@373b5fd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:30:52, skipping insertion in model container [2023-11-06 20:30:52,042 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:30:52" (3/3) ... [2023-11-06 20:30:52,043 INFO L112 eAbstractionObserver]: Analyzing ICFG uniq-2.i [2023-11-06 20:30:52,064 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 20:30:52,064 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 493 error locations. [2023-11-06 20:30:52,156 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 20:30:52,167 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6d9ca01f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-06 20:30:52,167 INFO L358 AbstractCegarLoop]: Starting to check reachability of 493 error locations. [2023-11-06 20:30:52,179 INFO L276 IsEmpty]: Start isEmpty. Operand has 1225 states, 690 states have (on average 2.0072463768115942) internal successors, (1385), 1182 states have internal predecessors, (1385), 33 states have call successors, (33), 11 states have call predecessors, (33), 11 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2023-11-06 20:30:52,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-06 20:30:52,186 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 20:30:52,187 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-06 20:30:52,189 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 490 more)] === [2023-11-06 20:30:52,198 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 20:30:52,198 INFO L85 PathProgramCache]: Analyzing trace with hash 457840, now seen corresponding path program 1 times [2023-11-06 20:30:52,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-06 20:30:52,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [48269295] [2023-11-06 20:30:52,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 20:30:52,217 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 20:30:52,217 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74cf2181-9e7a-4f94-8788-5bb1fa15bf9e/bin/utaipan-verify-FOvIYxoinp/mathsat [2023-11-06 20:30:52,227 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74cf2181-9e7a-4f94-8788-5bb1fa15bf9e/bin/utaipan-verify-FOvIYxoinp/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 20:30:52,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74cf2181-9e7a-4f94-8788-5bb1fa15bf9e/bin/utaipan-verify-FOvIYxoinp/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-06 20:30:52,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 20:30:52,585 INFO L262 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 20:30:52,590 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 20:30:52,658 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-06 20:30:52,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 20:30:52,676 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 20:30:52,677 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-06 20:30:52,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [48269295] [2023-11-06 20:30:52,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [48269295] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 20:30:52,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 20:30:52,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 20:30:52,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603159146] [2023-11-06 20:30:52,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 20:30:52,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 20:30:52,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-06 20:30:52,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 20:30:52,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 20:30:52,719 INFO L87 Difference]: Start difference. First operand has 1225 states, 690 states have (on average 2.0072463768115942) internal successors, (1385), 1182 states have internal predecessors, (1385), 33 states have call successors, (33), 11 states have call predecessors, (33), 11 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)